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Under-the-Sink Reverse Osmosis Whole House Reverse Osmosis Systems Commercial / Industrial Reverse Osmosis Systems (Fresh Water, Brackish Water and Sea Water) Water Industry Updates Residential Reverse Osmosis Commercial Reverse Osmosis Purification Technologies Glossary of terms |
The vast majority of purification systems involve filtration of some sort. All filtration works on the same principle, only the sizes of the pores in the filters are different. The best filtration that is commercially available is filtration by Reverse Osmosis. Pore sizes here are .0006 microns. Going to larger filtration pores you have nano-filtration .006 microns, ultra-filtration .06 microns, and micro-filtration .6 microns. After this you have various other filtration media which range from 1 micron to 100 commonly known as sediment filters. For size comparisons, a human hair is about 100 microns. Carbon filters are filtration devices which use carbon to attact undesirables out of the water and onto the carbon. A common technique in filtration is attaching a chemical feeder before the filtering media to inject chemicals in water to change the chemical properties of the undesirables in water so it can be filtered out by the media. Water softeners are popular conditioning devices which serve this function for Reverse Osmosis filters. Without some sort of pre-conditioner for very hard water, hard water tends to destroy Reverse Osmosis membranes. |
